[Intel-gfx] [PATCH 3/3] drm/i915: disable MSI on Ironlake temporarily

[Eric Anholt]

On Mon, 2009-11-02 at 08:10 -0800, Keith Packard wrote:
> Excerpts from Zhenyu Wang's message of Sun Nov 01 23:52:31 -0800 2009:
> 
> > +     * MSI looks unstable on Ironlake, until we find out the reason, disable
> > +     * it for now.
> 
> We've had all kinds of problems when trying to run without MSI; there
> are questions about the order of operation when using regular
> interrupts.

In fact, the docs now explicitly state that we can't do reliable command
synchronization without MSI.

-- 
Eric Anholt
eric at anholt.net                         eric.anholt at intel.com


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